Kubernetes - Really the next base for server operations. I kind of wrap is up as “Core” infrstrucutre
RancherOS - Lightweight distro dedicated to running Kubernetes
K3OS - Distro developed to run k3s. Based on LinuxKit
Operation Systems
CentOS: My go-to for server installations. Being a Redhat Enterprise clone it is pretty boring, but that’s a good thing for servers :-) http://www.centos.org/
Ubuntu: My go-to for desktop installations. Being a Debian derivative makes me happy (first distro I really liked back in the 90s). It’s popularity on the desktop ensures a decent amount of support from hardware and some software vendors. http://www.ubuntu.com/
VMWare: The most popular commercial visualization platform. What I use at my day job http://www.vmware.com